1.Durable light weight FRP top cover
2.Deep set oil bath lubrication system for 320TP frames and above
3.Dual Chrome lifting lugs
4.Oversized cast iron conduit box
5.U.L approved insulation system, NEMA MG-1 Part 31 Inverter Duty, Non Hydroscopic Epoxy Varnish, Double VPI Treatment
6.Precision cast "P" base design which allows motor to mount without taking of rodent screen
7.Dual air flow system. Lower bracket has multiple air-ducts which is conducive for superior cooling throughout the motor with non-corrosive rodent screens upper & lower
8.Precision balanced die cast aluminum rotor with anti-rust paint finish. Rotor is made from 600 grade silicon steel to minimize core loss
9.Class F insulation with Class B Temp Rise @ 1.15 S.F
10.All Stainless Steel full data nameplate
11.Twist spigot oil drain
12.Oversized one piece sight glass
13.Upper bracket machined for 175% EHT on 440 frames and above.
14.Handle grip oil fill plug for ease of removing and reinstalling
15.12 ball "Ball Type" Non Reverse Ratchet made from ductile iron for superior rigidity
Our Vertical Hollow Shaft Motor (TEFC IP54) is engineered for superior durability, efficient performance, and ease of maintenance. Key structural benefits include:
Structural Advantage | Description |
Lightweight yet robust design | The FRP top cover ensures a durable, corrosion-resistant structure while minimizing overall weight. |
Enhanced lubrication system | Deep-set oil bath lubrication (for 320TP frames and above) prolongs operational life and reduces wear. |
Reliable lifting and handling | Dual chrome lifting lugs and precision handles allow safe and convenient installation and maintenance. |
Optimized cooling performance | Dual airflow system with multiple air-ducts and non-corrosive rodent screens ensures effective heat dissipation. |
Precision-engineered components | Die-cast aluminum rotor with anti-rust finish and 600-grade silicon steel minimizes core loss and improves efficiency. |
Superior mounting and alignment | “P” base design and machined upper bracket enable secure mounting without additional adjustments. |
Durable and safe electrical design | Oversized cast iron conduit box, U.L-approved insulation system, and Class F insulation with Class B temperature rise enhance electrical reliability. |
Maintenance-friendly features | Twist spigot oil drain, one-piece oversized sight glass, and handle grip oil fill plug simplify routine service. |
High-strength mechanical parts | Ductile iron “Ball Type” non-reverse ratchet and other precision-machined components ensure rigidity and long-lasting performance. |
This vertical hollow shaft motor combines lightweight construction, robust mechanical integrity, efficient cooling, and service-friendly design, making it ideal for demanding industrial applications.
Proven American Frame Design：Reliable construction ensuring stability and long-term performance.
Superior Dual Airflow Ventilation System：Optimized cooling for enhanced motor efficiency and extended lifespan.
High-Grade All-Cast Iron Construction：Robust and durable frame for industrial-grade applications.
Durable Fiberglass Reinforced Plastic (FRP) Top Cover：Lightweight yet corrosion-resistant for long-term durability.
Convenient Handle Grip Oil Fill Plug：Simplifies maintenance and oil refilling.
Deep-Set Oil Bath Lubrication (Frames 440TP and above)：Ensures smooth operation and reduces wear.
Oversized Oil Sight Glass (5810P)：Easy monitoring of lubrication levels for maintenance efficiency.
Precision Ball-Type Ratchet Assembly：High-strength design for reliable mechanical performance.
Stainless Steel Louvered Rodent Screens：Protects internal components from debris and pests.
Precisely Balanced Rotating Assembly：Minimizes vibration for smoother operation.
Upper Bracket Machined with Spacer for 175% EHT Installation：Ensures proper alignment and secure mounting.
UL Inverter Duty Rated Wiring：Compatible with inverter-driven applications for flexible control.
Stainless Steel Full Data Nameplate：Durable, corrosion-resistant identification for each motor.
Premium Class “F” Insulation：Ensures high thermal endurance and long-term reliability.
Double VPI (Vacuum Pressure Impregnation) Treatment：Provides superior insulation integrity.
NEMA MG-1 Part 31 Compliant：Meets industry standards for inverter-duty motors.
Integrated Space Heaters with Thermal Protection：Safeguards windings against condensation and overheating.
Complete Data Pack Available Upon Request：Comprehensive specifications provided for each horsepower rating.
Tropicalized Insulation System：Designed for high-humidity and tropical environments.
Low Core Loss Silicon Laminations：Minimizes energy losses and enhances efficiency.
UL-Approved Insulation System：Ensures electrical safety and compliance.
NEMA STANDARD
VERTICAL HOLLOW SHAFT MOTOR DATA
IEC STANDARD
PRECISION BALANCING PROCEDURES
Wangyang’s vertical hollow shaft motors are to have precision balancing to ensure premium performance and long motor life for each and every motor. We test our motors with vibration monitors to detect different levels of vibration to allow our machinist to make corrections if necessary. All rotating parts are balanced individually before the motor is assembled.
In certain circumstances even if all parts are balanced to normal tolerances, when assembled to form a complete motor and rotate in the same direction, this may cause cumulative error. Therefore we test the complete unit as well to a precision balance of .00085" to ensure a smooth well balanced motor.
1.SMALL ROTATING PARTS DYNAMICALLY BALANCED Rotor, thrust bearing, coupling, and backstops are all dynamically balanced on an electronically controlled machine. | 2.DYNAMICALLY BALANCED ROTOR Dynamic balanced rotor assembly is similarly perfected on electronic machine that measures correction. | 3.ENTIRE MOTOR CHECKED FOR BALANCE TO .00085" VIBRATION Vibration monitor measures overall movement of assembled motor. Precision tolerance of only .00085". | 4.REFINED BALANCE OF ASSEMBLED MOTOR COMPLETED Precision balancing is achieved in step 3 by tempering lead weights in upper bearing mount. |
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PREMIUM QUALITY COMPONENTS & ACCESSORY PARTS
OVERSIZED THRUST BEARINGS TO WITHSTAND
DEMANDING THRUST LOADS
Wangyang vertical hollow shaft motors thrust bearings are oversized for long life. Trouble free Bearing operation is assured with visible oil levels, low friction bronze bearing retainer, precision cast bearing housing, deep oil bath, and precision balanced bearings.
BEARING OPTIONS FOR EXTRA HIGH THRUST APPLICATIONS
Where higher thrust requirements exists, Wangyang offer options to match the thrust requirements for long term operation. We took provisions for stacking bearings by having a "spacer bearing" need only be removed and a matched bearing installed in its place to make an easy modification. For even a higher thrust demand, spherical roller bearings with copper cooling tubes are furnished.
BALL TYPE" NON REVERSE RATCHET
LOCKS INSTANTLY AGAINST PUMP SHAFT BACKSPIN
When motor current ceases, water column receding to normal water level causes pump backspin. The preferred ball type non reverse ratchet is the best design to prevent this backspin. Possibility of reverse operation is also eliminated. The ball type consists of an outer rotating member with a series of channels positioned at a compound angle outwardly and upwardly. When the motor starts, the balls rise by centrifugal action free of the ratchet. When the motor is shut — off and as the drop slows down, the free of rolling balls drop down their respective channels, instantly locking against reversal of the pump shaft when the motor reaches a dead stop. Wangyang ratchets are made from ductile iron and the balls are made from durable steel.
NEMA STANDARD WP1
VERTICAL HOLLOW SHAFT MOTOR DIMENSION
NEMA STANDARD TEFC
VERTICAL HOLLOW SHAFT MOTOR DIMENSION
IEC STANDARD
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